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Normal menstrual flow lasts about 5 days and produces a total blood loss of 60 to 250 ml and occurs every 28 days. There are several causes of abnormal vaginal bleeding and a careful exam by a healthcare provider is frequently the best way to sort out the source of the bleeding.

Review Date: 9/18/2000 12:00:00 AM Reviewed By: J. Gordon Lambert, MD, Associate Medical Director; G. Eric Morgan, MS3; RxRemedy

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